Airworthiness Directives; The Boeing Company Airplanes, 9238-9242 [2018-04228]
Download as PDF
<![CDATA[
9238
Proposed Rules
Federal Register
Vol. 83, No. 43
Monday, March 5, 2018
This section of the FEDERAL REGISTER
contains notices to the public of the proposed
issuance of rules and regulations. The
purpose of these notices is to give interested
persons an opportunity to participate in the
rule making prior to the adoption of the final
rules.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0162; Product
Identifier 2017–NM–116–AD]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to supersede
Airworthiness Directive (AD) 2016–18–
01, which applies to certain The Boeing
Company Model 737–600, –700, –700C,
–800, –900, and –900ER series
airplanes. AD 2016–18–01 requires
repetitive lubrication of the forward and
aft trunnion pin assemblies of the right
and left main landing gears (MLGs);
repetitive inspection of these assemblies
for corrosion and chrome damage, and
related investigative and corrective
actions, if necessary; and installation of
new or modified trunnion pin assembly
components, which terminates the
repetitive lubrication and repetitive
inspections. Since we issued AD 2016–
18–01, we have determined that rotable
parts were not addressed in that AD and
that all airplanes of the affected models,
excluding those with a certain
configuration, should be inspected to
determine if affected MLG trunnion pin
assemblies are installed. This proposed
AD would therefore add airplanes to the
applicability. We are proposing this AD
to address the unsafe condition on these
products.
DATES: We must receive comments on
this proposed AD by April 19, 2018.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
sradovich on DSK3GMQ082PROD with PROPOSALS
SUMMARY:
VerDate Sep<11>2014
16:41 Mar 02, 2018
Jkt 244001
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations,
M–30, West Building Ground Floor,
Room W12–140, 1200 New Jersey
Avenue SE, Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this NPRM, contact Boeing Commercial
Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster
Blvd., MC 110–SK57, Seal Beach, CA
90740–5600; telephone 562–797–1717;
internet https://
www.myboeingfleet.com. You may view
this service information at the FAA,
Transport Standards Branch, 2200
South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
It is also available on the internet at
https://www.regulations.gov by searching
for and locating Docket No. FAA–2018–
0162.
Examining the AD Docket
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0162; or in person at the Docket
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this NPRM, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket Office (phone: 800–647–
5527) is in the ADDRESSES section.
Comments will be available in the AD
docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT:
Alan Pohl, Aerospace Engineer,
Airframe Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des
Moines, WA 98198; telephone and fax:
206–231–3527; email: alan.pohl@
faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposal. Send your comments to
an address listed under the ADDRESSES
section. Include ‘‘Docket No. FAA–
2018–0162; Product Identifier 2017–
NM–116–AD’’ at the beginning of your
comments. We specifically invite
PO 00000
Frm 00001
Fmt 4702
Sfmt 4702
comments on the overall regulatory,
economic, environmental, and energy
aspects of this NPRM. We will consider
all comments received by the closing
date and may amend this NPRM
because of those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
Discussion
We issued AD 2016–18–01,
Amendment 39–18631 (81 FR 59830,
August 31, 2016) (‘‘AD 2016–18–01’’),
for certain The Boeing Company Model
737–600, –700, –700C, –800, –900, and
–900ER series airplanes. AD 2016–18–
01 requires repetitive lubrication of the
forward and aft trunnion pin assemblies
of the right and left MLGs; repetitive
inspection of these assemblies for
corrosion and chrome damage, and
related investigative and corrective
actions, if necessary; and installation of
new or modified trunnion pin assembly
components, which terminates the
repetitive lubrication and repetitive
inspections. AD 2016–18–01 resulted
from reports of heavy corrosion and
chrome damage on the forward and aft
trunnion pin assemblies of the right and
left MLGs. We issued AD 2016–18–01 to
detect and correct heavy corrosion and
chrome damage on the forward and aft
trunnion pin assemblies of the right and
left MLGs, which could result in
cracking of these assemblies and
collapse of the MLGs.
Actions Since AD 2016–18–01 Was
Issued
To support operations, many
operators have put processes in place
that, given certain conditions, allow
them to rotate or transfer parts or
equipment within their fleets to
different aircraft than what is defined in
the manufacturer’s type design. We have
determined that the parts or equipment
subject to the unsafe condition
addressed by this proposed AD may
have been rotated or transferred in this
manner, due to similarity with parts or
equipment not subject to the unsafe
condition addressed by this proposed
AD. Therefore, AD 2016–18–01 is being
superseded to include all Model 737–
600, –700, –700C, –800, –900, and
–900ER airplanes.
E:\FR\FM\05MRP1.SGM
05MRP1
9239
Federal Register / Vol. 83, No. 43 / Monday, March 5, 2018 / Proposed Rules
Related Service Information Under 1
CFR Part 51
We reviewed Boeing Special
Attention Service Bulletin 737–32–
1448, Revision 2, dated August 2, 2017
(‘‘BSASB 737–32–1448, R2’’). This
service information describes
procedures for determining the part
numbers of the forward and aft trunnion
pin assemblies installed on the right and
left MLGs, inspections for corrosion or
damage on the forward and aft trunnion
pin assemblies and related investigative
and corrective actions, repetitive
lubrication of these assemblies, and
installation of new or modified trunnion
pin assembly components. This service
information is reasonably available
because the interested parties have
access to it through their normal course
of business or by the means identified
in the ADDRESSES section.
FAA’s Determination
We are proposing this AD because we
evaluated all the relevant information
and determined the unsafe condition
described previously is likely to exist or
develop in other products of the same
type design.
Proposed AD Requirements
This proposed AD would retain all
requirements of AD 2016–18–01. This
proposed AD would add airplanes to the
applicability. This proposed AD would
also prohibit the installation of a MLG
or MLG trunnion pin assembly on any
airplane identified in paragraph (c) of
the proposed AD unless certain actions
are accomplished. In addition, this
proposed AD would require
accomplishing the actions specified in
the service information described
previously, except as discussed under
‘‘Differences Between this Proposed AD
and the Service Information.’’ For
information on the procedures and
compliance times, see this service
information at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0162.
The phrase ‘‘related investigative
actions’’ is used in this proposed AD.
Related investigative actions are followon actions that (1) are related to the
primary action, and (2) further
investigate the nature of any condition
found. Related investigative actions in
an AD could include, for example,
inspections.
The phrase ‘‘corrective actions’’ is
used in this proposed AD. Corrective
actions correct or address any condition
found. Corrective actions in an AD
could include, for example, repairs.
Differences Between This Proposed AD
and the Service Information
The effectivity specified in BSASB
737–32–1448, R2 consists of Model
737–600, –700, –700C, –800, –900, and
–900ER airplanes identified as line
numbers 1 through 6510 inclusive.
Expanding the applicability of this
proposed AD to all Model 737–600,
–700, –700C, –800, –900, and –900ER
airplanes addresses the rotability of the
MLG trunnion pin assembly.
In this proposed AD, operators would
need to accomplish the actions required
by paragraphs (g), (h), (i), (j) and (k) of
this proposed AD, and comply with the
parts installation prohibition in
paragraph (m) of this proposed AD, on
any Model 737–600, –700, –700C, –800,
–900, and –900ER airplanes with an
original Certificate of Airworthiness or
an original Export Certificate of
Airworthiness dated on or before the
effective date of the final rule. We have
confirmed with Boeing that the
accomplishment instructions in BSASB
737–32–1448, R2 are applicable to these
expanded groups of airplanes.
For Model 737–600, –700, –700C,
–800, –900, and –900ER airplanes with
an original Certificate of Airworthiness
or an original Export Certificate of
Airworthiness dated after the effective
date of the final rule, operators would
not be required to comply with the
requirements of paragraphs (g), (h), (i),
(j), and (k) of this proposed AD, but
would be required to comply with the
parts installation prohibition in
paragraph (m) of this proposed AD.
Costs of Compliance
We estimate that this proposed AD
affects up to 1,814 airplanes of U.S.
registry. We estimate the following costs
to comply with this proposed AD:
ESTIMATED COSTS
sradovich on DSK3GMQ082PROD with PROPOSALS
Labor cost
Lubrication (retained actions
from AD 2016–18–01).
Inspection (Groups 1 and 2,
Configuration 1 airplanes;
retained actions from AD
2016–18–01).
Inspection (Group 3 airplanes;
retained actions from AD
2016–18–01).
Replacement/overhaul
(Groups 1 and 2 airplanes;
retained actions from AD
2016–18–01).
Replacement/overhaul (Group
3 airplanes retained actions
from AD 2016–18–01).
Lubrication pin assemblies
(new proposed action, Work
Packages 1 and 2).
Inspection (new proposed action; Groups 1, 2, 4, and 5,
Configuration 1 airplanes;
Work Package 2).
Inspection (new proposed action; Groups 3 and 6 airplanes; Work Package 2).
2 work-hours × $85 per hour
= $170 per lubrication cycle.
51 work-hours × $85 per hour
= $4,335 per inspection
cycle.
0
$170 per lubrication cycle ......
0
$4,335 per inspection cycle ...
93 work-hours × $85 per hour
= $7,905 per inspection
cycle.
84 work-hours × $85 per hour
= $7,140.
0
$7,905 per inspection cycle ...
$276,675 per inspection cycle
(35 airplanes).
0
$7,140 ....................................
$7,054,320 (988 airplanes).
86 work-hours × $85 per hour
= $7,310.
0
$7,310 ....................................
$255,850 (35 airplanes).
2 work-hours × $85 per hour
= $170 per lubrication cycle.
0
$170 per lubrication cycle ......
51 work-hours × $85 per hour
= $4,335 per inspection
cycle.
0
$4,335 per inspection cycle ...
$308,380, per lubrication
cycle (up to 1,814 airplanes).
$7,594,920 per inspection
cycle (1,752 airplanes).
93 work-hours × $85 per hour
= $7,905 per inspection
cycle.
0
$7,905 per inspection cycle ...
VerDate Sep<11>2014
16:41 Mar 02, 2018
Jkt 244001
PO 00000
Parts cost
Cost on U.S.
operators
Action
Frm 00002
Fmt 4702
Cost per product
Sfmt 4702
E:\FR\FM\05MRP1.SGM
05MRP1
$173,910, per lubrication
cycle (1,023 airplanes).
$4,282,980 per inspection
cycle (988 airplanes).
$490,110 per inspection cycle
(62 airplanes).
9240
Federal Register / Vol. 83, No. 43 / Monday, March 5, 2018 / Proposed Rules
ESTIMATED COSTS—Continued
Action
Labor cost
Replacement/overhaul trunnion pin assembly (Groups
1, 2, 4, and 5 airplanes;
new proposed action; Work
Package 2).
Replacement/overhaul trunnion pin assembly (Groups
3 and 6 airplanes; new proposed action; Work Package 2).
We have received no definitive data
that would enable us to provide cost
estimates for the on-condition actions
specified in this proposed AD.
Authority for This Rulemaking
sradovich on DSK3GMQ082PROD with PROPOSALS
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
Section 106, describes the authority of
the FAA Administrator. Subtitle VII,
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
We are issuing this rulemaking under
the authority described in Subtitle VII,
Part A, Subpart III, Section 44701,
‘‘General requirements.’’ Under that
section, Congress charges the FAA with
promoting safe flight of civil aircraft in
air commerce by prescribing regulations
for practices, methods, and procedures
the Administrator finds necessary for
safety in air commerce. This regulation
is within the scope of that authority
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
This proposed AD is issued in
accordance with authority delegated by
the Executive Director, Aircraft
Certification Service, as authorized by
FAA Order 8000.51C. In accordance
with that order, issuance of ADs is
normally a function of the Compliance
and Airworthiness Division, but during
this transition period, the Executive
Director has delegated the authority to
issue ADs applicable to transport
category airplanes to the Director of the
System Oversight Division.
Regulatory Findings
We have determined that this
proposed AD would not have federalism
implications under Executive Order
13132. This proposed AD would not
have a substantial direct effect on the
States, on the relationship between the
national Government and the States, or
on the distribution of power and
VerDate Sep<11>2014
16:41 Mar 02, 2018
Jkt 244001
$7,140 ....................................
$12,509,280 (up to 1,752 airplanes).
0
86 work-hours × $85 per hour
= $7,310.
Cost on U.S.
operators
0
84 work-hours × $85 per hour
= $7,140.
Cost per product
$7,310 ....................................
$453,220 (62 airplanes).
Parts cost
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that the proposed regulation:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Is not a ‘‘significant rule’’ under
the DOT Regulatory Policies and
Procedures (44 FR 11034, February 26,
1979),
(3) Will not affect intrastate aviation
in Alaska, and
(4) Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by
removing Airworthiness Directive (AD)
2016–18–01, Amendment 39–18631 (81
FR 59830, August 31, 2016), and adding
the following new AD:
■
The Boeing Company: Docket No. FAA–
2018–0162; Product Identifier 2017–
NM–116–AD.
(a) Comments Due Date
The FAA must receive comments on this
AD action by April 19, 2018.
(b) Affected ADs
This AD replaces AD 2016–18–01,
Amendment 39–18631 (81 FR 59830, August
31, 2016) (‘‘AD 2016–18–01’’).
PO 00000
Frm 00003
Fmt 4702
Sfmt 4702
(c) Applicability
This AD applies to all The Boeing
Company Model 737–600, –700, –700C,
–800, –900, and –900ER series airplanes,
certificated in any category, as specified in
paragraphs (c)(1) through (c)(7) of this AD
(1) Airplanes in Groups 1 and 2,
Configuration 1, as identified in Boeing
Special Attention Service Bulletin 737–32–
1448, Revision 2, dated August 2, 2017
(‘‘BSASB 737–32–1448, R2’’).
(2) Airplanes in Groups 1 and 2,
Configuration 2, as identified in BSASB 737–
32–1448, R2.
(3) Airplanes in Group 3, as identified in
BSASB 737–32–1448, R2.
(4) Airplanes in Groups 4 and 5,
Configuration 1, as identified in BSASB 737–
32–1448, R2, except where this service
bulletin specifies the groups as line numbers
3527 through 6510 inclusive, this AD
specifies those groups as line number 3527
through any line number of an airplane with
an original Certificate of Airworthiness or an
original Export Certificate of Airworthiness
dated on or before the effective date of this
AD.
(5) Airplanes in Groups 4 and 5,
Configuration 2, as identified in BSASB 737–
32–1448, R2, except where this service
bulletin specifies the groups as line numbers
3527 through 6510 inclusive, this AD
specifies those groups as line number 3527
through any line number of an airplane with
an original Certificate of Airworthiness or an
original Export Certificate of Airworthiness
dated on or before the effective date of this
AD.
(6) Airplanes in Groups 6 as identified in
BSASB 737–32–1448, R2, except where this
service bulletin specifies the groups as line
numbers 3527 through 6510 inclusive, this
AD specifies those groups as line number
3527 through any line number of an airplane
with an original Certificate of Airworthiness
or an original Export Certificate of
Airworthiness dated on or before the
effective date of this AD.
(7) All Model 737–600, –700, –700C, –800,
–900 and –900ER series airplanes with an
original Certificate of Airworthiness or an
original Export Certificate of Airworthiness
dated after the effective date of this AD.
(d) Subject
Air Transport Association (ATA) of
America Code 32, Landing Gear.
E:\FR\FM\05MRP1.SGM
05MRP1
Federal Register / Vol. 83, No. 43 / Monday, March 5, 2018 / Proposed Rules
(e) Unsafe Condition
This AD was prompted by reports of heavy
corrosion and chrome damage on the forward
and aft trunnion pin assemblies of the right
and left main landing gears (MLGs). We are
issuing this AD to detect and correct heavy
corrosion and chrome damage on the forward
and aft trunnion pin assemblies of the right
and left MLGs, which could result in
cracking of these assemblies and collapse of
the MLGs.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Inspection To Determine Part Number of
MLG Trunnion Pin Assembly
For airplanes identified in paragraphs
(c)(1), (c)(3), (c)(4), and (c)(6) of this AD:
Except as required by paragraph (l) of this
AD, at the applicable time specified in Table
1, Table 2, Table 4, or Table 5, of paragraph
1.E., ‘‘Compliance,’’ of BSASB 737–32–1448,
R2, do an inspection to determine if any of
the MLG trunnion pin assembly part
numbers identified in paragraph 2.C.3.,
‘‘Parts Modified and Reidentified,’’ of BSASB
737–32–1448, R2, are installed. A review of
airplane maintenance records is acceptable in
lieu of this inspection if the part number of
each MLG trunnion pin assembly can be
conclusively determined from that review.
sradovich on DSK3GMQ082PROD with PROPOSALS
(h) Repetitive Lubrication of MLG Trunnion
Pin Assemblies
For airplanes identified in paragraphs
(c)(1), (c)(3), (c)(4), or (c)(6) of this AD,
having any part number identified in
paragraph 2.C.3., ‘‘Parts Modified and
Reidentified,’’ of BSASB 737–32–1448, R2,
installed: Except as required by paragraph (l)
of this AD, at the applicable time specified
in Table 1, Table 2, Table 4, or Table 5, of
paragraph 1.E., ‘‘Compliance,’’ of BSASB
737–32–1448, R2, lubricate the applicable
forward and aft trunnion pin assemblies of
the right and left MLGs, in accordance with
Work Package 1 of the Accomplishment
Instructions of BSASB 737–32–1448, R2.
Repeat the lubrication thereafter at intervals
not to exceed those specified in Table 1,
Table 2, Table 4, or Table 5, of paragraph
1.E., ‘‘Compliance,’’ of BSASB 737–32–1448,
R2. Accomplishment of the actions specified
in paragraph (j) of this AD terminates the
repetitive lubrication required by this
paragraph.
(i) Repetitive Inspections, Corrective
Actions, and Lubrication
For airplanes identified in paragraphs
(c)(1), (c)(3), (c)(4), or (c)(6) of this AD,
having any part number identified in
paragraph 2.C.3., ‘‘Parts Modified and
Reidentified,’’ BSASB 737–32–1448, R2,
installed: Except as required by paragraph (l)
of this AD, at the applicable time specified
in Table 1, Table 2, Table 4, or Table 5, of
paragraph 1.E., ‘‘Compliance,’’ of BSASB
737–32–1448, R2, do a general visual
inspection of the left and right MLGs at the
forward and aft trunnion pin locations and
the visible surfaces of the forward and aft
trunnion pin assemblies for discrepancies
VerDate Sep<11>2014
16:41 Mar 02, 2018
Jkt 244001
including signs of corrosion or chrome
plating damage, and lubricate the forward
and aft trunnion pin assemblies as
applicable, in accordance with Work Package
2 of the Accomplishment Instructions of
BSASB 737–32–1448, R2. Repeat the general
visual inspection thereafter at intervals not to
exceed those specified in paragraph 1.E.,
‘‘Compliance,’’ of BSASB 737–32–1448, R2.
If any discrepancy is found during any
inspection required by this paragraph, before
further flight, do all applicable related
investigative and corrective actions in
accordance with Work Package 2 of the
Accomplishment Instructions of BSASB 737–
32–1448, R2. Accomplishment of the actions
required by paragraph (j) of this AD
terminates the repetitive inspections required
by this paragraph.
(j) Modification of MLG Trunnion Pin
Assemblies
For airplanes identified in paragraphs
(c)(1), (c)(3), (c)(4), or (c)(6) of this AD,
having any part number identified in
paragraph 2.C.3., ‘‘Parts Modified and
Reidentified,’’ BSASB 737–32–1448, R2
installed: Except as required by paragraph (l)
of this AD, at the time specified in Table 1,
Table 2, Table 4, or Table 5, as applicable,
of paragraph 1.E., ‘‘Compliance,’’ of BSASB
737–32–1448, R2, modify the left and right
MLG trunnion pin assemblies, including all
applicable related investigative and
corrective actions, in accordance with Work
Package 3 of the Accomplishment
Instructions of BSASB 737–32–1448, R2. All
applicable related investigative and
corrective actions must be done at the time
specified in paragraph 1.E., ‘‘Compliance,’’ of
BSASB 737–32–1448, R2. Accomplishment
of the actions in Work Package 3 of the
Accomplishment Instructions of BSASB 737–
32–1448, R2 terminates the repetitive
lubrication required by paragraph (h) of this
AD and the repetitive inspections required by
paragraph (i) of this AD.
(k) Replacement of MLG Forward Trunnion
Pin Housing Assembly, Seal, and Retainer
For airplanes identified in paragraphs
(c)(2) and (c)(5) of this AD: Except as
required by paragraph (l) of this AD, at the
time specified in Table 3 or Table 6, as
applicable, of paragraph 1.E., ‘‘Compliance,’’
of BSASB 737–32–1448, R2, replace the seal,
retainer, and support ring assembly with a
new seal and retainer configuration; install
the forward trunnion pin assembly into the
housing assembly; and lubricate the forward
and aft trunnion pin assemblies for the left
and right MLGs; in accordance with Work
Package 4 of the Accomplishment
Instructions of BSASB 737–32–1448, R2.
(l) Exception to Service Information
Specification
Where paragraph 1.E., ‘‘Compliance,’’ of
BSASB 737–32–1448, R2 specifies a
compliance time ‘‘after the Revision 2 date of
this service bulletin,’’ this AD requires
compliance within the specified compliance
time after the effective date of this AD.
(m) Parts Installation Limitation
As of the effective date of this AD, no
person may install a MLG or MLG trunnion
PO 00000
Frm 00004
Fmt 4702
Sfmt 4702
9241
pin assembly on any airplane identified in
paragraphs (c)(1) through (c)(7) of this AD
unless the actions required by paragraphs (j)
or (k), as applicable, of this AD have been
accomplished on the MLG or MLG trunnion
pin assembly.
(n) Credit for Previous Actions
(1) This paragraph provides credit for the
requirements of paragraph (h) of this AD, if
those actions were performed before the
effective date of this AD using Boeing Special
Attention Service Bulletin 737–32–1448,
dated May 19, 2011; or Boeing Special
Attention Service Bulletin 737–32–1448,
Revision 1, dated May 29, 2015.
(2) This paragraph provides credit for the
requirements of paragraphs (i), (j), and (k) of
this AD, if those actions were performed
before the effective date of this AD using
Boeing Special Attention Service Bulletin
737–32–1448, Revision 1, dated May 29,
2015.
(o) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Seattle ACO Branch,
FAA, has the authority to approve AMOCs
for this AD, if requested using the procedures
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your
principal inspector or local Flight Standards
District Office, as appropriate. If sending
information directly to the manager of the
certification office, send it to the attention of
the person identified in paragraph (p)(1) of
this AD. Information may be emailed to: 9ANM-Seattle-ACO-AMOC-Requests@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair,
modification, or alteration required by this
AD if it is approved by the Boeing
Commercial Airplanes Organization
Designation Authorization (ODA) that has
been authorized by the Manager, Seattle ACO
Branch, to make those findings. To be
approved, the repair method, modification
deviation, or alteration deviation must meet
the certification basis of the airplane, and the
approval must specifically refer to this AD.
(4) AMOCs approved previously for AD
2016–18–01 are approved as AMOCs for the
corresponding provisions of this AD.
(p) Related Information
(1) For more information about this AD,
contact Alan Pohl, Aerospace Engineer,
Airframe Section, FAA, Seattle ACO Branch,
2200 South 216th St., Des Moines, WA
98198; telephone and fax: 206–231–3527;
email: alan.pohl@faa.gov.
(2) For service information identified in
this AD, contact Boeing Commercial
Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd.,
MC 110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet https://
www.myboeingfleet.com. You may view this
referenced service information at the FAA,
Transport Standards Branch, 2200 South
216th St., Des Moines, WA. For information
E:\FR\FM\05MRP1.SGM
05MRP1
9242
Federal Register / Vol. 83, No. 43 / Monday, March 5, 2018 / Proposed Rules
on the availability of this material at the
FAA, call 206–231–3195.
Issued in Renton, Washington, on February
20, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division,
Aircraft Certification Service.
[FR Doc. 2018–04228 Filed 3–2–18; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 71
[Docket No. FAA–2018–0062; Airspace
Docket No. 18–ASO–3]
Proposed Amendment of Class D
Airspace and Class E Airspace;
Pensacola, FL, and Proposed
Establishment of Class E Airspace;
Milton, FL
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
This action proposes to
amend Class D airspace and Class E
airspace extending upward from 700
feet above the surface at Choctaw Naval
Outlying Field (NOLF), Milton, FL, by
changing the city associated with the
airport name in the above airspace
classes and adjusting the geographic
coordinates of the airport and the Santa
Rosa TACAN navigation aid to match
the FAA’s aeronautical database.
Additionally, Class E surface airspace
would be established at Choctaw NOLF
for the safety of aircraft landing and
departing the airport when the air traffic
control tower is closed. Also, an
editorial change would be made to the
Class D airspace legal description
replacing ‘‘Airport/Facility Directory’’
with the term ‘‘Chart Supplement’’. This
action would enhance the safety and
management of instrument flight rules
(IFR) operations at the airport.
DATES: Comments must be received on
or before April 19, 2018.
ADDRESSES: Send comments on this
proposal to: U.S. Department of
Transportation, Docket Operations, 1200
New Jersey Avenue SE, West Bldg.
Ground Floor Rm W12–140,
Washington, DC 20590; Telephone: 1
(800) 647–5527, or (202) 366–9826. You
must identify the Docket No. FAA–
2018–0062; Airspace Docket No. 18–
ASO–3, at the beginning of your
comments. You may also submit and
review received comments through the
internet at https://www.regulations.gov.
You may review the public docket
sradovich on DSK3GMQ082PROD with PROPOSALS
SUMMARY:
VerDate Sep<11>2014
16:41 Mar 02, 2018
Jkt 244001
containing the proposal, any comments
received, and any final disposition in
person in the Dockets Office between
9:00 a.m. and 5:00 p.m., Monday
through Friday, except federal holidays.
FAA Order 7400.11B, Airspace
Designations and Reporting Points, and
subsequent amendments can be viewed
online at https://www.faa.gov/air_traffic/
publications/. For further information,
you can contact the Airspace Policy
Group, Federal Aviation
Administration, 800 Independence
Avenue SW, Washington, DC 20591;
telephone: (202) 267–8783. The Order is
also available for inspection at the
National Archives and Records
Administration (NARA). For
information on the availability of FAA
Order 7400.11B at NARA, call (202)
741–6030, or go to https://
www.archives.gov/federal-register/cfr/
ibr-locations.html.
FAA Order 7400.11, Airspace
Designations and Reporting Points, is
published yearly and effective on
September 15.
FOR FURTHER INFORMATION CONTACT: John
Fornito, Operations Support Group,
Eastern Service Center, Federal Aviation
Administration, 1701 Columbia Avenue,
College Park, Georgia 30337; telephone
(404) 305–6364.
SUPPLEMENTARY INFORMATION:
Authority for This Rulemaking
The FAA’s authority to issue rules
regarding aviation safety is found in
Title 49 of the United States Code.
Subtitle I, Section 106 describes the
authority of the FAA Administrator.
Subtitle VII, Aviation Programs,
describes in more detail the scope of the
agency’s authority. This rulemaking is
promulgated under the authority
described in Subtitle VII, Part A,
Subpart I, Section 40103. Under that
section, the FAA is charged with
prescribing regulations to assign the use
of airspace necessary to ensure the
safety of aircraft and the efficient use of
airspace. This regulation is within the
scope of that authority as it would
establish Class E airspace, and amend
Class D and Class E airspace at Choctaw
NOLF, Milton, FL, to support IFR
operations at the airport.
Comments Invited
Interested persons are invited to
comment on this rule by submitting
such written data, views, or arguments,
as they may desire. Comments that
provide the factual basis supporting the
views and suggestions presented are
particularly helpful in developing
reasoned regulatory decisions on the
proposal. Comments are specifically
PO 00000
Frm 00005
Fmt 4702
Sfmt 4702
invited on the overall regulatory,
aeronautical, economic, environmental,
and energy-related aspects of the
proposal.
Communications should identify both
docket numbers and be submitted in
triplicate to the address listed above.
You may also submit comments through
the internet at https://
www.regulations.gov.
Persons wishing the FAA to
acknowledge receipt of their comments
on this action must submit with those
comments a self-addressed stamped
postcard on which the following
statement is made: ‘‘Comments to
Docket No. FAA–2017–0062; Airspace
Docket No. 18–ASO–3.’’ The postcard
will be date/time stamped and returned
to the commenter.
All communications received before
the specified closing date for comments
will be considered before taking action
on the proposed rule. The proposal
contained in this notice may be changed
in light of the comments received. A
report summarizing each substantive
public contact with FAA personnel
concerned with this rulemaking will be
filed in the docket.
Availability of NPRMs
An electronic copy of this document
may be downloaded through the
internet at https://www.regulations.gov.
Recently published rulemaking
documents can also be accessed through
the FAA’s web page at https://
www.faa.gov/air_traffic/publications/
airspace_amendments/.
You may review the public docket
containing the proposal, any comments
received, and any final disposition in
person in the Dockets Office (see the
ADDRESSES section for address and
phone number) between 9:00 a.m. and
5:00 p.m., Monday through Friday,
except federal holidays. An informal
docket may also be examined between
8:00 a.m. and 4:30 p.m., Monday
through Friday, except federal holidays
at the office of the Eastern Service
Center, Federal Aviation
Administration, Room 350, 1701
Columbia Avenue, College Park, GA
30337.
Availability and Summary of
Documents for Incorporation by
Reference
This document proposes to amend
FAA Order 7400.11B, Airspace
Designations and Reporting Points,
dated August 3, 2017, and effective
September 15, 2017. FAA Order
7400.11B is publicly available as listed
in the ADDRESSES section of this
document. FAA Order 7400.11B lists
Class A, B, C, D, and E airspace areas,
E:\FR\FM\05MRP1.SGM
05MRP1
]]>Agencies
[Federal Register Volume 83, Number 43 (Monday, March 5, 2018)]
[Proposed Rules]
[Pages 9238-9242]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-04228]
========================================================================
Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
========================================================================
Federal Register / Vol. 83, No. 43 / Monday, March 5, 2018 / Proposed
Rules
[[Page 9238]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2018-0162; Product Identifier 2017-NM-116-AD]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to supersede Airworthiness Directive (AD) 2016-18-
01, which applies to certain The Boeing Company Model 737-600, -700, -
700C, -800, -900, and -900ER series airplanes. AD 2016-18-01 requires
repetitive lubrication of the forward and aft trunnion pin assemblies
of the right and left main landing gears (MLGs); repetitive inspection
of these assemblies for corrosion and chrome damage, and related
investigative and corrective actions, if necessary; and installation of
new or modified trunnion pin assembly components, which terminates the
repetitive lubrication and repetitive inspections. Since we issued AD
2016-18-01, we have determined that rotable parts were not addressed in
that AD and that all airplanes of the affected models, excluding those
with a certain configuration, should be inspected to determine if
affected MLG trunnion pin assemblies are installed. This proposed AD
would therefore add airplanes to the applicability. We are proposing
this AD to address the unsafe condition on these products.
DATES: We must receive comments on this proposed AD by April 19, 2018.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, contact Boeing
Commercial Airplanes, Attention: Contractual & Data Services (C&DS),
2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600;
telephone 562-797-1717; internet https://www.myboeingfleet.com. You may
view this service information at the FAA, Transport Standards Branch,
2200 South 216th St., Des Moines, WA. For information on the
availability of this material at the FAA, call 206-231-3195. It is also
available on the internet at https://www.regulations.gov by searching
for and locating Docket No. FAA-2018-0162.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0162; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this NPRM, the regulatory evaluation, any comments received,
and other information. The street address for the Docket Office (phone:
800-647-5527) is in the ADDRESSES section. Comments will be available
in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Alan Pohl, Aerospace Engineer,
Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; telephone and fax: 206-231-3527; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2018-0162;
Product Identifier 2017-NM-116-AD'' at the beginning of your comments.
We specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this NPRM. We will consider all
comments received by the closing date and may amend this NPRM because
of those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
We issued AD 2016-18-01, Amendment 39-18631 (81 FR 59830, August
31, 2016) (``AD 2016-18-01''), for certain The Boeing Company Model
737-600, -700, -700C, -800, -900, and -900ER series airplanes. AD 2016-
18-01 requires repetitive lubrication of the forward and aft trunnion
pin assemblies of the right and left MLGs; repetitive inspection of
these assemblies for corrosion and chrome damage, and related
investigative and corrective actions, if necessary; and installation of
new or modified trunnion pin assembly components, which terminates the
repetitive lubrication and repetitive inspections. AD 2016-18-01
resulted from reports of heavy corrosion and chrome damage on the
forward and aft trunnion pin assemblies of the right and left MLGs. We
issued AD 2016-18-01 to detect and correct heavy corrosion and chrome
damage on the forward and aft trunnion pin assemblies of the right and
left MLGs, which could result in cracking of these assemblies and
collapse of the MLGs.
Actions Since AD 2016-18-01 Was Issued
To support operations, many operators have put processes in place
that, given certain conditions, allow them to rotate or transfer parts
or equipment within their fleets to different aircraft than what is
defined in the manufacturer's type design. We have determined that the
parts or equipment subject to the unsafe condition addressed by this
proposed AD may have been rotated or transferred in this manner, due to
similarity with parts or equipment not subject to the unsafe condition
addressed by this proposed AD. Therefore, AD 2016-18-01 is being
superseded to include all Model 737-600, -700, -700C, -800, -900, and -
900ER airplanes.
[[Page 9239]]
Related Service Information Under 1 CFR Part 51
We reviewed Boeing Special Attention Service Bulletin 737-32-1448,
Revision 2, dated August 2, 2017 (``BSASB 737-32-1448, R2''). This
service information describes procedures for determining the part
numbers of the forward and aft trunnion pin assemblies installed on the
right and left MLGs, inspections for corrosion or damage on the forward
and aft trunnion pin assemblies and related investigative and
corrective actions, repetitive lubrication of these assemblies, and
installation of new or modified trunnion pin assembly components. This
service information is reasonably available because the interested
parties have access to it through their normal course of business or by
the means identified in the ADDRESSES section.
FAA's Determination
We are proposing this AD because we evaluated all the relevant
information and determined the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
Proposed AD Requirements
This proposed AD would retain all requirements of AD 2016-18-01.
This proposed AD would add airplanes to the applicability. This
proposed AD would also prohibit the installation of a MLG or MLG
trunnion pin assembly on any airplane identified in paragraph (c) of
the proposed AD unless certain actions are accomplished. In addition,
this proposed AD would require accomplishing the actions specified in
the service information described previously, except as discussed under
``Differences Between this Proposed AD and the Service Information.''
For information on the procedures and compliance times, see this
service information at https://www.regulations.gov by searching for and
locating Docket No. FAA-2018-0162.
The phrase ``related investigative actions'' is used in this
proposed AD. Related investigative actions are follow-on actions that
(1) are related to the primary action, and (2) further investigate the
nature of any condition found. Related investigative actions in an AD
could include, for example, inspections.
The phrase ``corrective actions'' is used in this proposed AD.
Corrective actions correct or address any condition found. Corrective
actions in an AD could include, for example, repairs.
Differences Between This Proposed AD and the Service Information
The effectivity specified in BSASB 737-32-1448, R2 consists of
Model 737-600, -700, -700C, -800, -900, and -900ER airplanes identified
as line numbers 1 through 6510 inclusive. Expanding the applicability
of this proposed AD to all Model 737-600, -700, -700C, -800, -900, and
-900ER airplanes addresses the rotability of the MLG trunnion pin
assembly.
In this proposed AD, operators would need to accomplish the actions
required by paragraphs (g), (h), (i), (j) and (k) of this proposed AD,
and comply with the parts installation prohibition in paragraph (m) of
this proposed AD, on any Model 737-600, -700, -700C, -800, -900, and -
900ER airplanes with an original Certificate of Airworthiness or an
original Export Certificate of Airworthiness dated on or before the
effective date of the final rule. We have confirmed with Boeing that
the accomplishment instructions in BSASB 737-32-1448, R2 are applicable
to these expanded groups of airplanes.
For Model 737-600, -700, -700C, -800, -900, and -900ER airplanes
with an original Certificate of Airworthiness or an original Export
Certificate of Airworthiness dated after the effective date of the
final rule, operators would not be required to comply with the
requirements of paragraphs (g), (h), (i), (j), and (k) of this proposed
AD, but would be required to comply with the parts installation
prohibition in paragraph (m) of this proposed AD.
Costs of Compliance
We estimate that this proposed AD affects up to 1,814 airplanes of
U.S. registry. We estimate the following costs to comply with this
proposed AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Lubrication (retained actions 2 work-hours x $85 0 $170 per $173,910, per
from AD 2016-18-01). per hour = $170 lubrication cycle. lubrication cycle
per lubrication (1,023 airplanes).
cycle.
Inspection (Groups 1 and 2, 51 work-hours x $85 0 $4,335 per $4,282,980 per
Configuration 1 airplanes; per hour = $4,335 inspection cycle. inspection cycle
retained actions from AD 2016-18- per inspection (988 airplanes).
01). cycle.
Inspection (Group 3 airplanes; 93 work-hours x $85 0 $7,905 per $276,675 per
retained actions from AD 2016-18- per hour = $7,905 inspection cycle. inspection cycle
01). per inspection (35 airplanes).
cycle.
Replacement/overhaul (Groups 1 84 work-hours x $85 0 $7,140............. $7,054,320 (988
and 2 airplanes; retained per hour = $7,140. airplanes).
actions from AD 2016-18-01).
Replacement/overhaul (Group 3 86 work-hours x $85 0 $7,310............. $255,850 (35
airplanes retained actions from per hour = $7,310. airplanes).
AD 2016-18-01).
Lubrication pin assemblies (new 2 work-hours x $85 0 $170 per $308,380, per
proposed action, Work Packages 1 per hour = $170 lubrication cycle. lubrication cycle
and 2). per lubrication (up to 1,814
cycle. airplanes).
Inspection (new proposed action; 51 work-hours x $85 0 $4,335 per $7,594,920 per
Groups 1, 2, 4, and 5, per hour = $4,335 inspection cycle. inspection cycle
Configuration 1 airplanes; Work per inspection (1,752 airplanes).
Package 2). cycle.
Inspection (new proposed action; 93 work-hours x $85 0 $7,905 per $490,110 per
Groups 3 and 6 airplanes; Work per hour = $7,905 inspection cycle. inspection cycle
Package 2). per inspection (62 airplanes).
cycle.
[[Page 9240]]
Replacement/overhaul trunnion pin 84 work-hours x $85 0 $7,140............. $12,509,280 (up to
assembly (Groups 1, 2, 4, and 5 per hour = $7,140. 1,752 airplanes).
airplanes; new proposed action;
Work Package 2).
Replacement/overhaul trunnion pin 86 work-hours x $85 0 $7,310............. $453,220 (62
assembly (Groups 3 and 6 per hour = $7,310. airplanes).
airplanes; new proposed action;
Work Package 2).
----------------------------------------------------------------------------------------------------------------
We have received no definitive data that would enable us to provide
cost estimates for the on-condition actions specified in this proposed
AD.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
This proposed AD is issued in accordance with authority delegated
by the Executive Director, Aircraft Certification Service, as
authorized by FAA Order 8000.51C. In accordance with that order,
issuance of ADs is normally a function of the Compliance and
Airworthiness Division, but during this transition period, the
Executive Director has delegated the authority to issue ADs applicable
to transport category airplanes to the Director of the System Oversight
Division.
Regulatory Findings
We have determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or on the distribution
of power and responsibilities among the various levels of government.
For the reasons discussed above, I certify that the proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD)
2016-18-01, Amendment 39-18631 (81 FR 59830, August 31, 2016), and
adding the following new AD:
The Boeing Company: Docket No. FAA-2018-0162; Product Identifier
2017-NM-116-AD.
(a) Comments Due Date
The FAA must receive comments on this AD action by April 19,
2018.
(b) Affected ADs
This AD replaces AD 2016-18-01, Amendment 39-18631 (81 FR 59830,
August 31, 2016) (``AD 2016-18-01'').
(c) Applicability
This AD applies to all The Boeing Company Model 737-600, -700, -
700C, -800, -900, and -900ER series airplanes, certificated in any
category, as specified in paragraphs (c)(1) through (c)(7) of this
AD
(1) Airplanes in Groups 1 and 2, Configuration 1, as identified
in Boeing Special Attention Service Bulletin 737-32-1448, Revision
2, dated August 2, 2017 (``BSASB 737-32-1448, R2'').
(2) Airplanes in Groups 1 and 2, Configuration 2, as identified
in BSASB 737-32-1448, R2.
(3) Airplanes in Group 3, as identified in BSASB 737-32-1448,
R2.
(4) Airplanes in Groups 4 and 5, Configuration 1, as identified
in BSASB 737-32-1448, R2, except where this service bulletin
specifies the groups as line numbers 3527 through 6510 inclusive,
this AD specifies those groups as line number 3527 through any line
number of an airplane with an original Certificate of Airworthiness
or an original Export Certificate of Airworthiness dated on or
before the effective date of this AD.
(5) Airplanes in Groups 4 and 5, Configuration 2, as identified
in BSASB 737-32-1448, R2, except where this service bulletin
specifies the groups as line numbers 3527 through 6510 inclusive,
this AD specifies those groups as line number 3527 through any line
number of an airplane with an original Certificate of Airworthiness
or an original Export Certificate of Airworthiness dated on or
before the effective date of this AD.
(6) Airplanes in Groups 6 as identified in BSASB 737-32-1448,
R2, except where this service bulletin specifies the groups as line
numbers 3527 through 6510 inclusive, this AD specifies those groups
as line number 3527 through any line number of an airplane with an
original Certificate of Airworthiness or an original Export
Certificate of Airworthiness dated on or before the effective date
of this AD.
(7) All Model 737-600, -700, -700C, -800, -900 and -900ER series
airplanes with an original Certificate of Airworthiness or an
original Export Certificate of Airworthiness dated after the
effective date of this AD.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
Gear.
[[Page 9241]]
(e) Unsafe Condition
This AD was prompted by reports of heavy corrosion and chrome
damage on the forward and aft trunnion pin assemblies of the right
and left main landing gears (MLGs). We are issuing this AD to detect
and correct heavy corrosion and chrome damage on the forward and aft
trunnion pin assemblies of the right and left MLGs, which could
result in cracking of these assemblies and collapse of the MLGs.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection To Determine Part Number of MLG Trunnion Pin Assembly
For airplanes identified in paragraphs (c)(1), (c)(3), (c)(4),
and (c)(6) of this AD: Except as required by paragraph (l) of this
AD, at the applicable time specified in Table 1, Table 2, Table 4,
or Table 5, of paragraph 1.E., ``Compliance,'' of BSASB 737-32-1448,
R2, do an inspection to determine if any of the MLG trunnion pin
assembly part numbers identified in paragraph 2.C.3., ``Parts
Modified and Reidentified,'' of BSASB 737-32-1448, R2, are
installed. A review of airplane maintenance records is acceptable in
lieu of this inspection if the part number of each MLG trunnion pin
assembly can be conclusively determined from that review.
(h) Repetitive Lubrication of MLG Trunnion Pin Assemblies
For airplanes identified in paragraphs (c)(1), (c)(3), (c)(4),
or (c)(6) of this AD, having any part number identified in paragraph
2.C.3., ``Parts Modified and Reidentified,'' of BSASB 737-32-1448,
R2, installed: Except as required by paragraph (l) of this AD, at
the applicable time specified in Table 1, Table 2, Table 4, or Table
5, of paragraph 1.E., ``Compliance,'' of BSASB 737-32-1448, R2,
lubricate the applicable forward and aft trunnion pin assemblies of
the right and left MLGs, in accordance with Work Package 1 of the
Accomplishment Instructions of BSASB 737-32-1448, R2. Repeat the
lubrication thereafter at intervals not to exceed those specified in
Table 1, Table 2, Table 4, or Table 5, of paragraph 1.E.,
``Compliance,'' of BSASB 737-32-1448, R2. Accomplishment of the
actions specified in paragraph (j) of this AD terminates the
repetitive lubrication required by this paragraph.
(i) Repetitive Inspections, Corrective Actions, and Lubrication
For airplanes identified in paragraphs (c)(1), (c)(3), (c)(4),
or (c)(6) of this AD, having any part number identified in paragraph
2.C.3., ``Parts Modified and Reidentified,'' BSASB 737-32-1448, R2,
installed: Except as required by paragraph (l) of this AD, at the
applicable time specified in Table 1, Table 2, Table 4, or Table 5,
of paragraph 1.E., ``Compliance,'' of BSASB 737-32-1448, R2, do a
general visual inspection of the left and right MLGs at the forward
and aft trunnion pin locations and the visible surfaces of the
forward and aft trunnion pin assemblies for discrepancies including
signs of corrosion or chrome plating damage, and lubricate the
forward and aft trunnion pin assemblies as applicable, in accordance
with Work Package 2 of the Accomplishment Instructions of BSASB 737-
32-1448, R2. Repeat the general visual inspection thereafter at
intervals not to exceed those specified in paragraph 1.E.,
``Compliance,'' of BSASB 737-32-1448, R2. If any discrepancy is
found during any inspection required by this paragraph, before
further flight, do all applicable related investigative and
corrective actions in accordance with Work Package 2 of the
Accomplishment Instructions of BSASB 737-32-1448, R2. Accomplishment
of the actions required by paragraph (j) of this AD terminates the
repetitive inspections required by this paragraph.
(j) Modification of MLG Trunnion Pin Assemblies
For airplanes identified in paragraphs (c)(1), (c)(3), (c)(4),
or (c)(6) of this AD, having any part number identified in paragraph
2.C.3., ``Parts Modified and Reidentified,'' BSASB 737-32-1448, R2
installed: Except as required by paragraph (l) of this AD, at the
time specified in Table 1, Table 2, Table 4, or Table 5, as
applicable, of paragraph 1.E., ``Compliance,'' of BSASB 737-32-1448,
R2, modify the left and right MLG trunnion pin assemblies, including
all applicable related investigative and corrective actions, in
accordance with Work Package 3 of the Accomplishment Instructions of
BSASB 737-32-1448, R2. All applicable related investigative and
corrective actions must be done at the time specified in paragraph
1.E., ``Compliance,'' of BSASB 737-32-1448, R2. Accomplishment of
the actions in Work Package 3 of the Accomplishment Instructions of
BSASB 737-32-1448, R2 terminates the repetitive lubrication required
by paragraph (h) of this AD and the repetitive inspections required
by paragraph (i) of this AD.
(k) Replacement of MLG Forward Trunnion Pin Housing Assembly, Seal, and
Retainer
For airplanes identified in paragraphs (c)(2) and (c)(5) of this
AD: Except as required by paragraph (l) of this AD, at the time
specified in Table 3 or Table 6, as applicable, of paragraph 1.E.,
``Compliance,'' of BSASB 737-32-1448, R2, replace the seal,
retainer, and support ring assembly with a new seal and retainer
configuration; install the forward trunnion pin assembly into the
housing assembly; and lubricate the forward and aft trunnion pin
assemblies for the left and right MLGs; in accordance with Work
Package 4 of the Accomplishment Instructions of BSASB 737-32-1448,
R2.
(l) Exception to Service Information Specification
Where paragraph 1.E., ``Compliance,'' of BSASB 737-32-1448, R2
specifies a compliance time ``after the Revision 2 date of this
service bulletin,'' this AD requires compliance within the specified
compliance time after the effective date of this AD.
(m) Parts Installation Limitation
As of the effective date of this AD, no person may install a MLG
or MLG trunnion pin assembly on any airplane identified in
paragraphs (c)(1) through (c)(7) of this AD unless the actions
required by paragraphs (j) or (k), as applicable, of this AD have
been accomplished on the MLG or MLG trunnion pin assembly.
(n) Credit for Previous Actions
(1) This paragraph provides credit for the requirements of
paragraph (h) of this AD, if those actions were performed before the
effective date of this AD using Boeing Special Attention Service
Bulletin 737-32-1448, dated May 19, 2011; or Boeing Special
Attention Service Bulletin 737-32-1448, Revision 1, dated May 29,
2015.
(2) This paragraph provides credit for the requirements of
paragraphs (i), (j), and (k) of this AD, if those actions were
performed before the effective date of this AD using Boeing Special
Attention Service Bulletin 737-32-1448, Revision 1, dated May 29,
2015.
(o) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle ACO Branch, FAA, has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request
to your principal inspector or local Flight Standards District
Office, as appropriate. If sending information directly to the
manager of the certification office, send it to the attention of the
person identified in paragraph (p)(1) of this AD. Information may be
emailed to: [email protected].
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by the Boeing Commercial Airplanes Organization
Designation Authorization (ODA) that has been authorized by the
Manager, Seattle ACO Branch, to make those findings. To be approved,
the repair method, modification deviation, or alteration deviation
must meet the certification basis of the airplane, and the approval
must specifically refer to this AD.
(4) AMOCs approved previously for AD 2016-18-01 are approved as
AMOCs for the corresponding provisions of this AD.
(p) Related Information
(1) For more information about this AD, contact Alan Pohl,
Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198; telephone and fax: 206-231-
3527; email: [email protected].
(2) For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; internet https://www.myboeingfleet.com. You may view this referenced service
information at the FAA, Transport Standards Branch, 2200 South 216th
St., Des Moines, WA. For information
[[Page 9242]]
on the availability of this material at the FAA, call 206-231-3195.
Issued in Renton, Washington, on February 20, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2018-04228 Filed 3-2-18; 8:45 am]
BILLING CODE 4910-13-P
